Warner



WARNER, PEIFFER & LEPPER.

Metal Drilling Machine.

Patented Aug, 13, i867. V

No. 67,826. Y

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@ni-teh' gisten gattini @ffies DANIEL WARNER, Wr FQPEIFFER, ANDA;LEPPER, or Pour CLINTON,

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Letter@ Patent No. 67,826, ma August v13, 1,867.-`

IMPROVEliLFt."ANT* IN DRILLING MACHINES.

T0 ALL WHOM IT MAY CONCERN:V p

` Beit known that-we, D ANIer.- WARNER, W. F. Pumpen, and A. F. LEPPER,of Port Clinton, in the county of Ottawa, and in'the State of Ohio, haveinvented certain new and'useful improvements in Drilling Machines; andAdo hereby declare that the following isa full, clear, and exactdescription thereof, reference beinghad to the n'ecompanying `driftwingsand to the letters of reference marked thereon.

l.In the annexed'rdrawingsrA A represent two uprights, which are made ofmetal, andv which are secured upon a suitable platform or baise.A B Brepresent two metallic cross-pieces, which serve to connect and securethe two uprights irm'ly together..v z e representv two short shafts,which pass through the uprights A A at right angles. `These shafts areprovided on ltheir Vouter ends with the balance-.wheels C C', and ontheir inner ends with the bevel gear-wheelsrD D.` F represents a shaft,which stands -in a vertical position lbetween the two u'prights, andwhich passes through the hub of the wheel 'E whichrevolves in nu openingin the lower cross- Vharl B', The wheel E hns apin in its hubl whichtakes intoa groove in the shaft, wherebymotion iscommu- `nica'ted to theshaftwhich is allowed to slide vertically through the. wheel E., The.twobevel-wheels D D take into the bevel-wheel E, on'opposite sides,'asseen. To vthe lower endvof'thc shaft the drill G is secured in thesocket by ineans of a. setjscrew in the enlarged end of the shaft.J'represent-s a. rack-bar -which is ,secured between the Vtwo uprights,and lparallel with .the shaft F. M' represents a metallic box, a portionof which -embraces the racl -ba1'J, having- .A groove in it in which the'rack-har passes. A short shaft passes through this box M.,i.nd saidshaft is provided with a. wl1eel,K-,which acts as a balance crank-wheel,and also with a pinion, LLwhich takes into the teeth of the rack-bar J.The shaft .E passes .its upper end into the lowerside of this' box, anda shaft, I, has its lower ehd inserted in an opening in the upper sideofthe box, the two shafts, I and F, being on the sume vertical line.Both of these 4shafts are providedvwith groovesaround those ends whichenter the box, und the ends of set-screws which pass through the boxproject into these grooves and prevent the Vshafts from drawing ont, butdo not prevent them from revolving. The shaft I has a thread crut uponit. N represents a. ratchetfwheel, which is provided with a hub whichpasses through an opening in the upper crossbar B l This huh hasa-thread cut Ain its inside to correspondjwith the, threadof shaft I.Therhub revolves in-jtheopen'ingin cross-'bar B. R representsa lever,which has o. box formed upon its lower end, in which an eccentric wheely, upon shaft z, works, giving seid lever, when the machine is inoperation, arockingo'r oscillating'mot-ion, This leverR is providedwith-a slot made longitudinally ofit, through which the end of a pin,

y, passes, and said lever'rocks-or oscillates `against: or over thispin. The upper end of lever R is provided `with a spring-pand, S, whichcatches into the teeth of the ratchet-wheel N. The lever R, when itoscillates; causes- (through its pawlSithe `wheel N to revolveintermittently, and this wheel, by Ineens of its' thread iu itshub,

`depressesi'or4 elevates theshaft I. T represents a spring-pawl whichserves to prevent the wheel N from moving in` but o ie direction. drepresents the upper portion-of journalbox vrhichi'ts over the shaft oraxle z', which is 4adjustable by means'of a set-screw, e# This portionof the 'box can be removed so as to allow the bevelwheel D to beslippedout of gear with the wheel E. The pin g posses through a slot in thesupport A, and is provided with Aa screwed end and a nut for tighteningit up in the slot. By adjusting this pin higher or lower in its slot thewheel N will be moved more or less, as the operator may desire. Thewheel N being for the purpose of feeding the drill to its ivorklthroughthe vshafts I and F and `box M, it is very important that it sho-nld' be-sohrrange'd thatV it could be fed as fast or as slowly as the-work mayrequire. The drill is made to revolve by turning the crankbalance-wheels C C', which cause `the wheels D D( to give motion toWheel E upon the shaft Fto which the drill is attached.Y When the wheelC i-s` revolved the eccentric upon its xle causes thc lover R tooscillate, as has been described., and to feed the drill to its work.The screw is elevated `by meu-ns of a hand-wheel, for that purpose"provided, when the drill may be raised at vthe same time. It willsometimes be desirable in drilling softerniaterial to feed faster thancan he done bythe feeding mechanism heretofore described." The shaft'Ican be elevated so as not to obstruct the upward movement of box M, andthe feeding'and elevating operations performed by the hand-wheel K,pinionL, and rack-hard. The frame cf this machinenmy be placediufafhorzontal position, as seen in lig. 3, Whichfwould -leave the drilllying horizontaliy, or 'it may be placed vertica1ly,i,as in g. 1.

Having thus fully described our invention, what we claim is- 1.' Thearrangement of shafts z z', bevel-wheels D D, lsind bevel-wheelwithshaft F 'and box M, as and for the purpose specified.

2. In combinationwith the subject-matter of the rst claim, we cla-im thehand-wheel K, pinion L, rack J, and box M, uil constructed and .arrangedsubstantially as and for the purpose specified.

3. The lever R, constructedund used as specified, with the wheel N andshaft I, as and for the purpose set forth.

In testimony that we 'claim the foregoing, we have hereunto set our hundthis 30th day of March, 1867.

DANIEL WARNER, W. F. PEIFFER, A. F. LEPPER.

Witnesses:

J. M. S. WERN, O. E., PY'E.

